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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. class VT{
  4. 	private:
  5. 		float a,b,c;
  6. 	public:
  7. 		friend istream&operator>>(istream&x,VT &y );
  8. 		friend ostream&operator<<(ostream&x,VT y);
  9. 		VT operator+(VT y);
  10. 		bool operator>( VT y);
  11. };
  12. istream&operator>>(istream&x,VT &y ){
  13. 	cout<<"nhap a="; x>>y.a;
  14. 	cout<<"nhap b="; x>>y.b;
  15. 	cout<<"nhap c="; x>>y.c;
  16. 	return x;
  17. }
  18. ostream&operator<<(ostream&x,VT y ){
  19. 	x<<"("<<y.a<<","<<y.b<<","<<y.c<<")"<<endl;
  20. 	return x;
  21. }
  22. VT VT::operator+(VT y){
  23. 	VT u;
  24. 	u.a=a+y.a;
  25. 	u.b=b+y.b;
  26. 	u.c=c+y.c;
  27. 	return u;
  28. }
  29. bool VT::operator>(VT y){
  30. 	if(a>y.a&&b>y.b&&c>y.c)
  31. 	return true;
  32. 	else return false;
  33. }
  34. int main(){
  35. 	VT u,v;
  36. 	cout<<"Nhap thong tin Vecto u: "<<endl;
  37. 	cin>>u;
  38. 	cout<<"Nhap thong tin Vecto v: "<<endl;
  39. 	cin>>v;
  40. 	cout<<"Thong tin vecto u"<<endl;
  41. 	cout<<u<<endl;
  42. 	cout<<"Thong tin vecto v"<<endl;
  43. 	cout<<v<<endl;
  44. 	VT m=u+v;
  45. 	cout<<"tong 2 vecto"<<m<<endl;
  46. 	if(u>v==true){
  47. 		cout<<"vecto u lon hon vecto v!"<<endl;
  48. 	}
  49. 	else{
  50. 		cout<<"vecto u khong lon hon vecto v!"<<endl;
  51. 	}
  52. 	ofstream f("VT.txt");
  53. 	f<<"Tong 2 vecto"<<m<<endl;
  54. 	return 0;
  55. }
Success #stdin #stdout 0.01s 5280KB
comments (?)
stdin
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Standard input is empty
stdout
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Nhap thong tin Vecto u: 
nhap a=nhap b=nhap c=Nhap thong tin Vecto v: 
nhap a=nhap b=nhap c=Thong tin vecto u
(0,2.8026e-45,0)

Thong tin vecto v
(0,0,0)

tong 2 vecto(0,2.8026e-45,0)

vecto u khong lon hon vecto v!
https://ideone.com/oi08tj
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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